EP2631928A1 - Système d'aimant permanent pour un circuit d'attaque à arc lumineux et appareil de commutation - Google Patents

Système d'aimant permanent pour un circuit d'attaque à arc lumineux et appareil de commutation Download PDF

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Publication number
EP2631928A1
EP2631928A1 EP11191220.0A EP11191220A EP2631928A1 EP 2631928 A1 EP2631928 A1 EP 2631928A1 EP 11191220 A EP11191220 A EP 11191220A EP 2631928 A1 EP2631928 A1 EP 2631928A1
Authority
EP
European Patent Office
Prior art keywords
switching
contact
arrangement
arc
switching device
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP11191220.0A
Other languages
German (de)
English (en)
Inventor
Klaus Dauer
Anke Juelich
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Eaton Industries GmbH
Original Assignee
Eaton Industries GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Eaton Industries GmbH filed Critical Eaton Industries GmbH
Priority to EP11191220.0A priority Critical patent/EP2631928A1/fr
Priority to PCT/EP2012/073797 priority patent/WO2013079511A1/fr
Priority to PL12794315T priority patent/PL2786389T3/pl
Priority to US14/360,945 priority patent/US10290439B2/en
Priority to EP12794315.7A priority patent/EP2786389B1/fr
Publication of EP2631928A1 publication Critical patent/EP2631928A1/fr
Withdrawn legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
    • H01H9/30—Means for extinguishing or preventing arc between current-carrying parts
    • H01H9/32—Insulating body insertable between contacts
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F7/00—Magnets
    • H01F7/02—Permanent magnets [PM]
    • H01F7/0205—Magnetic circuits with PM in general
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H1/00—Contacts
    • H01H1/64—Protective enclosures, baffle plates, or screens for contacts
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
    • H01H9/30—Means for extinguishing or preventing arc between current-carrying parts
    • H01H9/44—Means for extinguishing or preventing arc between current-carrying parts using blow-out magnet
    • H01H9/443—Means for extinguishing or preventing arc between current-carrying parts using blow-out magnet using permanent magnets

Definitions

  • the invention relates to a switching device for DC applications.
  • the switching device comprises at least a first switching chamber for a first current path and a second switching chamber for a second current path, each current path at least one switching contact arrangement having a first contact and a second contact, wherein the two contacts in an on state of the switching device in contact and in a disconnected state of the switching device forming an isolating distance are kept out of contact with each other, and each current path at least one quenching device for erasing an arc occurring between the contacts.
  • Such a switching device is from the EP 2 061 053 A2 known.
  • a switching device for DC applications there is proposed to use the housing of a switching device for AC applications, in addition, at least two permanent magnets are provided which have a magnetic field with substantially transverse to the separation distance of the current paths field lines.
  • three switching chambers are provided in each case for a current path, each current path being assigned a movable switching contact element and two mutually opposite stationary switching contact elements.
  • the three movable switching contact elements are in this case jointly movable between a closed position, which corresponds to the switched-on state of the switching device, and an open position, which corresponds to the switched-off state of the switching device.
  • each current path has two separating sections, which, when the movable switching contact elements are open, extend between the ends thereof and the first and second stationary switching contact elements assigned to these ends form. When the switching contact elements are opened, an arc forms along the separating sections, which arc can be extinguished with the aid of the arc-extinguishing devices.
  • DC applications since erasure of an arc can not be achieved due to current zero crossing, as in AC applications, DC applications require the provision of a magnetic field which drives the arc into one of the arc quenching devices.
  • a switching device for DC applications which has at least a first switching chamber for a first current path and a second switching chamber for a second current path.
  • At least one switching contact arrangement is provided for each current path, which has a first contact and a second contact, wherein the two contacts are kept in contact with one another in an on state of the switching device and in an off state of the switching device an isolating distance is formed.
  • at least one extinguishing device is furthermore provided for extinguishing an arc occurring between the contacts.
  • an arc runner arrangement is provided which is arranged in one of the two switching chambers and at least in the region of the switching contact arrangement of the respective current path generates a magnetic field in order to drive the arc into the respective extinguishing device.
  • the switching device has a switching chamber in which a Lichtbogentreiberan Aunt is provided, and a switching chamber in which no arc running arrangement is provided.
  • the switching device is therefore suitable for both lower currents and high currents.
  • the switching chamber with arc runner arrangement is suitable for lower currents, in which the risk is low that an arc on the arc guide assembly rolls over.
  • the magnetic field of the arc runner assembly is also strong enough to drive arcs of a smaller current quickly into the quenching device.
  • the switching chamber without arc runner arrangement is particularly suitable for high currents, since no arc runner arrangement is arranged in this switching chamber and thus the arc can not overturn on such an arc runner arrangement.
  • the two switching chambers of the switching device are arranged side by side, so that the magnetic field of the arc runner assembly also radiates to the switching chamber without arc runner assembly and generates a Lorentz force on a resulting there arc.
  • the current paths are preferably arranged next to one another and parallel to one another.
  • the switching chambers can be formed separately from each other, in particular in a housing of the switching device by intermediate walls, wherein the intermediate walls are preferably made of an electrically insulating but magnetically permeable material.
  • the two current paths can be used depending on the application, ie at low currents occurring the current path is used with arc runner assembly and at high currents occurring the current path is used without the arc runner assembly.
  • the current paths can also be electrically connected in parallel or in series so that in principle current flows through both current paths and effects the extinction of an arc, depending on the occurring current intensity and the resulting quenching behavior of one of the two current paths. As a result, the maintained by the arcs Current flow interrupted at one point, so that all other arcs go out.
  • a third switching chamber can also be provided for a third flow path. If the arc runner arrangement is then arranged in the second switching chamber, this can be arranged between the first switching chamber and the second switching chamber.
  • the magnetic field of the arc runner assembly of the second switching chamber radiates to the other two, namely, the first switching chamber and the third switching chamber.
  • an arc runner arrangement is arranged in the first switching chamber and the third switching chamber, and the second switching chamber, which is located between the first and the third switching chamber, is free of an arc runner arrangement.
  • the arc runner assembly may include two permanent magnets disposed on opposite sides of the switch contact assembly that generate a magnetic field with field lines across the gap.
  • the arc runner arrangement may consist of a permanent magnet, which is provided above the switching contact arrangement, and which is arranged between two pole plates, which are located laterally on opposite sides of the switching contact arrangement.
  • At least one arc guide arrangement is provided per switching contact arrangement, by means of which the arc is directed to the extinguishing device of the respective switching contact arrangement.
  • Such an arc guide arrangement usually consists of baffles which extend from the contacts in the direction of the respective extinguishing device.
  • Each switching arrangement may basically consist of a fixed contact and a movable contact, wherein the first contacts are each arranged on a fixed contact carrier fixed in the switching chamber and the second contacts each arranged on a movable in the switching chamber Bridge arrangement are arranged.
  • the bridge arrangement serves to actuate the second contact.
  • a double interruption with two contact pairs can also be provided per current path, two contact arrangements being provided for each current path and the second contacts being arranged on a movable bridge contact piece and the second contacts being electrically connected to one another via the bridge contact element.
  • the two contact pairs each consisting of a first contact and a second contact, are thus connected in series.
  • arcs are formed between each contact pair.
  • the bridge switching pieces of all current paths can be actuated by a common bridge arrangement, so that by actuation of an element, namely the bridge arrangement, all contact pairs or switching contact arrangements are actuated.
  • FIG. 1 shows the switching device 1 according to the invention in a partial longitudinal section with a housing 2, which comprises a lower part 3 and an upper part 4.
  • FIG. 2 shows a view into the switching device 1, wherein the upper part 4 is omitted so that you can look into the lower part 3.
  • the two Figures 1 and 2 will be described together below.
  • the switching device 1 has three poles, ie three switching paths, namely a first switching path 5, a second switching path 6 and a third switching path 7.
  • Each switching path 5, 6, 7 is in a separate switching chamber, namely a first switching chamber 8, a second switching chamber 9 and a third switching chamber 10th arranged.
  • the switching chambers 8, 9, 10 are electrically separated from each other by partitions 11, 12 of the housing 2, wherein the intermediate walls 11, 12 are preferably magnetically permeable.
  • the three current paths 5, 6, 7 are identical in terms of their structure, wherein the structure of the current paths 5, 6, 7 is explained in more detail by way of example with reference to the middle second current path 6 in the following.
  • the second flow path 6 within the second switching chamber 9 is in FIG. 1 shown in longitudinal section.
  • the second switching path 6 is formed twice interrupting and has a first switching contact arrangement 13 and a second switching contact arrangement 16.
  • the two switch contact arrangements 13, 16 are identical and mirror images of each other.
  • the first switching contact arrangement 13, which in FIG. 1 is shown on the left side, comprises a contact pair with a first contact 14 and a second contact 15. Accordingly, the second switch contact arrangement 16 with a second contact pair comprising a first contact 17 and a second contact 18 is formed.
  • the first contact 14 of the first switching contact arrangement 13 is arranged on a first fixed contact carrier 19.
  • the first fixed contact carrier 19 is fixed and thus arranged immovably in the housing 2 of the switching device 1.
  • the first contact 17 is arranged at a first free end of the first fixed contact carrier 19. At a this end facing away from the end of the first fixed contact carrier 19, a first terminal 23 is provided for the connection of the first current path 5 in a DC circuit.
  • the second contact 15 of the first switch contact arrangement 13 is located on a bridge contact piece 20 of a bridge arrangement 21 and is movably arranged in the housing 2.
  • the bridge contact piece 20 is in the in FIG. 1 Oriented orientation vertically adjustable between a raised and a lowered position. In the raised position, the second contact 15 of the first switching contact arrangement 13 is in contact with the first contact 14. In a lowered position, the two contacts 14, 15 are out of contact. In this position, an isolating distance is formed between the first contact 14 and the second contact 15 along which an arc can form.
  • the second switching contact arrangement 16 is identical to the first switching contact arrangement 13.
  • the first contact 17 of the second switching contact arrangement 16 is located on a second fixed contact carrier 22 and is arranged at a first end of the second fixed contact carrier 22. At a this end remote from the end of the second fixed contact carrier 22, a second terminal 24 is provided.
  • the second contact 18 of the second switching contact arrangement 16 is likewise arranged on the bridge contact piece 20, specifically on an end remote from the second contact 15 of the first switching contact arrangement 13.
  • the bridge switching piece 20 is electrically conductive and connects the two second contacts 15, 18 electrically to each other.
  • the second contact 18 of the second switching arrangement 16 is in contact with the first contact 17, wherein in the lowered position of the bridge switching piece 20, the two contacts 17, 18 are kept out of contact and forms an insulating gap between them, along which can also form an arc.
  • a current can thus flow from the first terminal 23 via the first fixed contact carrier 19 to the first contact of the first switching contact arrangement 13, then on to the second contact 15 of the first switching contact arrangement 13 via the bridge contact piece 20 to the second contact 18 of the second switching contact arrangement 16 , From there, the current continues to flow to the first contact 17 of the second switching contact arrangement 16 via the second fixed contact carrier 22 to the second connection 24.
  • a switching bridge 30 is provided, which is arranged vertically displaceable in the housing 2 and the bridge switching piece 20 adjusted.
  • the bridge switching piece 20 is pressed with its second contacts 15, 18 via a spring 31 against the first contacts 14, 17, wherein the spring 31 is supported between the bridge switching piece 20 and the switching bridge 30.
  • two erasing devices namely a first erasing device 27 and a second erasing device 28 are provided.
  • the first erasing device 27 is assigned to the first switching contact arrangement 13 and the second erasing device 28 to the second switching contact arrangement 16.
  • the two erasing devices 27, 28 are each arranged on a side of the respective switching contact arrangement 13, 16 facing away from the switching bridge arrangement 21.
  • the first arc runner arrangement 32 comprises two first permanent magnets 25, which are arranged within the second switching chamber 9 on the intermediate walls 11, 12 and receive the first switching contact arrangement 13 between them.
  • the first permanent magnets 25 are designed plate-shaped and arranged parallel to the intermediate walls 11, 12.
  • the two first permanent magnets 25 are arranged rectified with respect to their magnetization, so that forms an approximately homogeneous magnetic field with field lines transverse to the separation direction between them.
  • the field lines of the magnetic field also extend transversely to an arc, which forms between the first contact 14 and the second contact 15 of the first switching contact arrangement 13.
  • a Lorenz force is generated by the magnetic field, which acts on the arc and drives it in the direction of the first extinguishing device 27.
  • the second arc driver assembly 33 is constructed similar to the first arc driver assembly 32 and includes two second ones
  • Permanent magnets 26 which receive the second switching contact arrangement 16 between them.
  • the magnetic field is in this case aligned in opposite to the magnetic field of the first permanent magnet 25.
  • An arc, which forms between the first contact 17 and the second contact 18 of the second switching contact arrangement 16, has a current direction which is spatially opposite to the current direction of an arc between the contacts 14, 15 of the first switching contact arrangement 13. If an arc as shown in FIG. 1 between the contacts 17, 18 of the second switching contact arrangement 16 has a current direction vertically downward, an arc between the contacts 14, 15 of the first switching contact arrangement, a current direction vertically upwards.
  • the first flow path 5 and the third flow path 7 as well as the first switching chamber 8 and the third switching chamber 10 are identical to the second flow path 6 and the second switching chamber 9, but with the difference that in the first switching chamber 8 and the third switching chamber 10 no arc drive arrangements are arranged. In the first switching chamber 8 and in the third switching chamber 10 thus no permanent magnets are arranged.
  • the arc runner arrangements 32, 33 of the first current path 6 radiate to the adjacent switching chambers, namely the first switching chamber 8 and the third switching chamber 10, in order to be able to exert a Lorentz force on a developing arc there as well.

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  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Arc-Extinguishing Devices That Are Switches (AREA)
EP11191220.0A 2011-11-29 2011-11-29 Système d'aimant permanent pour un circuit d'attaque à arc lumineux et appareil de commutation Withdrawn EP2631928A1 (fr)

Priority Applications (5)

Application Number Priority Date Filing Date Title
EP11191220.0A EP2631928A1 (fr) 2011-11-29 2011-11-29 Système d'aimant permanent pour un circuit d'attaque à arc lumineux et appareil de commutation
PCT/EP2012/073797 WO2013079511A1 (fr) 2011-11-29 2012-11-28 Système d'aimant permanent pour un système de commande d'arc électrique et appareil de commutation
PL12794315T PL2786389T3 (pl) 2011-11-29 2012-11-28 Układ magnesu trwałego do układu prowadzenia łuku elektrycznego i łącznik
US14/360,945 US10290439B2 (en) 2011-11-29 2012-11-28 Permanent magnet assembly for an arc driver assembly and switching device
EP12794315.7A EP2786389B1 (fr) 2011-11-29 2012-11-28 Système d'aimant permanent pour un circuit d'attaque à arc lumineux et appareil de commutation

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP11191220.0A EP2631928A1 (fr) 2011-11-29 2011-11-29 Système d'aimant permanent pour un circuit d'attaque à arc lumineux et appareil de commutation

Publications (1)

Publication Number Publication Date
EP2631928A1 true EP2631928A1 (fr) 2013-08-28

Family

ID=47263355

Family Applications (2)

Application Number Title Priority Date Filing Date
EP11191220.0A Withdrawn EP2631928A1 (fr) 2011-11-29 2011-11-29 Système d'aimant permanent pour un circuit d'attaque à arc lumineux et appareil de commutation
EP12794315.7A Active EP2786389B1 (fr) 2011-11-29 2012-11-28 Système d'aimant permanent pour un circuit d'attaque à arc lumineux et appareil de commutation

Family Applications After (1)

Application Number Title Priority Date Filing Date
EP12794315.7A Active EP2786389B1 (fr) 2011-11-29 2012-11-28 Système d'aimant permanent pour un circuit d'attaque à arc lumineux et appareil de commutation

Country Status (4)

Country Link
US (1) US10290439B2 (fr)
EP (2) EP2631928A1 (fr)
PL (1) PL2786389T3 (fr)
WO (1) WO2013079511A1 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9690119B2 (en) 2015-05-15 2017-06-27 Vertical Optics, LLC Wearable vision redirecting devices
IL244255A (en) 2016-02-23 2017-04-30 Vertical Optics Llc Wearable devices for deflecting vision
DE102020104258B4 (de) * 2020-02-18 2022-09-29 Schaltbau Gmbh Schaltgerät mit zumindest zwei miteinander kommunizierenden Löschbereichen

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0473014A2 (fr) * 1990-08-29 1992-03-04 Eaton Corporation Appareil de commutation de courant continu, bidirectionnel et avec des cornes d'arc fourchues s'étendant dans des chambres d'extinction d'arc séparées
DE10132858A1 (de) * 2000-07-07 2002-02-07 Fuji Electric Co Ltd Schutzschalter
JP2008226547A (ja) * 2007-03-09 2008-09-25 Denso Corp 電磁継電器
EP2061053A2 (fr) 2007-11-17 2009-05-20 Moeller GmbH Commutateur destiné à des applications à courant continu
EP2372735A1 (fr) * 2010-03-30 2011-10-05 Anden Co., Ltd. Relais électromagnétique

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JPS5713628A (en) * 1980-06-27 1982-01-23 Mitsubishi Electric Corp Direct current electromagnetic contactor
US4451718A (en) * 1981-02-27 1984-05-29 Mitsubishi Denki Kabushiki Kaisha Circuit breaker
JP2658170B2 (ja) * 1988-05-11 1997-09-30 オムロン株式会社 開閉器
US5763847A (en) * 1996-10-09 1998-06-09 Eaton Corporation Electric current switching apparatus with tornadic arc extinguishing mechanism
FR2807565B1 (fr) * 2000-04-10 2003-03-14 Schneider Electric Ind Sa Pole pour un disjoncteur electrique limiteur de basse tension de puissance et disjoncteur muni d'un tel pole
US7551050B2 (en) * 2006-09-22 2009-06-23 Rockwell Automation Technologies, Inc. Contactor assembly with arc steering system
US7716816B2 (en) * 2006-09-22 2010-05-18 Rockwell Automation Technologies, Inc. Method of manufacturing a switch assembly
DE102008005115A1 (de) * 2008-01-14 2009-07-16 Siemens Aktiengesellschaft Schaltgerät, insbesondere Leistungsschaltgerät, mit zwei in Reihe, geschalteten Schaltkontaktpaaren zur Unterbrechung einer Strombahn
EP2577699B1 (fr) * 2010-05-28 2015-02-25 ABB Research Ltd. Commutateur pour courant continu
EP2393094A1 (fr) * 2010-06-07 2011-12-07 Eaton Industries GmbH Unité de commutation dotée d'unités d'extinction d'arc
US8222983B2 (en) * 2010-12-08 2012-07-17 Eaton Corporation Single direct current arc chamber, and bi-directional direct current electrical switching apparatus employing the same
JP5682450B2 (ja) * 2011-05-23 2015-03-11 富士電機機器制御株式会社 回路遮断器
EP2551867A1 (fr) * 2011-07-28 2013-01-30 Eaton Industries GmbH Protection pour courant continu
US8766130B2 (en) * 2011-11-01 2014-07-01 Eaton Corporation Arc extinction apparatus and DC switch apparatus
IN2012CH00815A (fr) * 2012-03-05 2015-08-21 Gen Electric
US8847096B2 (en) * 2012-09-05 2014-09-30 Eaton Corporation Single direct current arc chute, and bi-directional direct current electrical switching apparatus employing the same
US9129761B2 (en) * 2012-12-20 2015-09-08 Eaton Electrical Ip Gmbh & Co. Kg Switching device suitable for direct current operation

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0473014A2 (fr) * 1990-08-29 1992-03-04 Eaton Corporation Appareil de commutation de courant continu, bidirectionnel et avec des cornes d'arc fourchues s'étendant dans des chambres d'extinction d'arc séparées
DE10132858A1 (de) * 2000-07-07 2002-02-07 Fuji Electric Co Ltd Schutzschalter
JP2008226547A (ja) * 2007-03-09 2008-09-25 Denso Corp 電磁継電器
EP2061053A2 (fr) 2007-11-17 2009-05-20 Moeller GmbH Commutateur destiné à des applications à courant continu
EP2372735A1 (fr) * 2010-03-30 2011-10-05 Anden Co., Ltd. Relais électromagnétique

Also Published As

Publication number Publication date
WO2013079511A1 (fr) 2013-06-06
EP2786389A1 (fr) 2014-10-08
EP2786389B1 (fr) 2017-08-30
US10290439B2 (en) 2019-05-14
US20150048911A1 (en) 2015-02-19
PL2786389T3 (pl) 2018-01-31

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